Cremone bolt



APYiH 1929. c. F; GESCHICKTER CREMONE BOLT Filed Ja n. 11, 1927 2 Sheets-Sheet 0% f /LAM M MW April 9, 11929. c. F. GESCHICKTER CREPIIONE BOLT 2 Sheets-Shem Filed Jan. 11, 1927 CHARLES F. GESCHICKTER, F WASHINGTON, DISTRICT OF CQLUMBSTA.

CREMONE BOLT.

Application filed January 11, 19.27. Serial No. 160,442.

As is well known, cremone bolts are placed on the surface of doors and sash and held in position by cleats or the like, and being ere posed it is necessary or very desirable, that they be made of bronze or brass, which material is very expensive. 8

One of the objects of my invention is to conceal the bolts within the side stile, whereby I am enabled to use a much cheaper metal which at the same time will be as etlioient as the more expensive metals. 1

A further object is to provide means for moving said bolts positively and simultaneously into and out of locking position; and

with these and other objects in View my invention consists of the parts and combma- 'tion of parts as will be hereinafter pointed out.

In the drawings:

Figure 1 is a front elevation of a door with the side stile partly in section showing my invention applied, the bolts being in locking position.

Figure 2 is a view similar to Figure 1, showing the bolts in unlocked position.

Figure 3 is an edge view of the door.

Figure at is a sectional View on the line H, Figure 1.

Figure 5 is a sectional view on the line 5-5, Figure 2.

Figure 6 is a detail sectional View with the operating lever in full lines, in locked position, and-in dotted lines in unlocked position.

Figures 7 and 8 are detail views of another embodiment of the locking lever.

Figure 9 is a side elevation of the cam plate.

It is to be understood that the term door includes casement sash.

The reference numeral 9 designates a door of any desired construction having the side stile 10. The stile 10 is grooved at its edge as at 11, which groove is closed by a strip insert 12, making the edge of the stile, in effect, laminated.

1n the groove 11 I slidably mount the two bolts 13 and 1 1. The outer ends of these bolts are adapted to be projected beyond the top and bottom edges of the door through the metal plates 15.

On the inner end of the looltlt I secure an arm 16 having an upwardly and inwardly turned hook 17. A cam plate 18 is secured to the bolt 13, said plate having a downwardly projecting arm 19, from which a lug 20' eX- tends outwardly and at the lower end of the arm 19 there is an inwardly extending arm 21 which is provided at its inner end with adownwardly extending hook 22. A rivet or other suitable device not shown passing through the lug 20 and into the bolt 13 secures the plate 18 and its parts to the bolt 13 securely.

The plate 18 is provided with a slot 241 into which an arm 25 is rigidly secured, said arm passing through the elongated slot 26 in the face plate 27 which is recessed as best shown in Figures 1 and 2, there being a shoulder 28 formed on the plate.

The outer end of the arm 25 is turned down in a right angle shape, one of the legs of the angle being bent to receive the pintle pin 29, which pin is adapted to be reciprocated in the slots 30 formed in the face plate 27.

An operating lever 31 is revolubly mounted at its upper end on the pin 29 while its lower end portion is provided with a lug 32, which is adapted to enter the slot 33 to latch the bolts in their latching position, and to enter the slot 34 to latch the bolts in their unlatched position, these slots being through the face plate 27.

Within the side stile in a recess 35 I mount a metal frame 36 which is provided with a rest plate 37, the box or frame being otherwise open from side to side, and in this frame 36 1 pivotally mount an elongated flat cam 38.

When the bolts 13, 14:, are in their unlatched position the parts assume the position shown in Figure 2.

hen it is desired to move the bolts to their latching position the lever 31 is raised to a horizontai position and an upward pull is exerted upon it whereby the cam plate 18 is slid upward pulling with it the'bolt 13 and the hooked arm 21, the book 22 of which immediately engages the cam 38 thereby rotating the cam on its axis and the other end of the cam 38 exerts a downward pressure on the hooked arm 16 thereby pushing the bolt 14 down, and such movement is continued until the pintle 29 reaches the upper end of the slot 30, whereupon the lever 31 is moved inward until the lug 32 enters the slot 35, thereby locking the parts against accidental movement.

To move the bolts to unlatched position lever 31 exerts a downward pressure on the plate 18, whereby through the arm 21 the cam 38 is moved from the position shown in Figure 1 to that shown in Figure'2; as the cam 38 is being moved to the position shown in Figure 2 one of its ends slidably engages the hook 17' on'the bolt 1 thereby elevating the bolt 13 simultaneously with the lowering of the bolt 1?,- un the parts assume the position in Figure 2, in which position the cam rests on the support 37, whereupon the lever 31 is again moved inward until the lug 32 enters the slot 34%, thus latcl'iing the parts against accidental movement.

From the above it will be seen that I have provided a lock oi this character which is concealed, is efiicient, and of low manufacturlIlQI' cost;

I am aware that some changes may be made in the construction of the parts without departing tromthe scope of the appended claims.

What I claim is 1. In a door latch, the combination with two oppositely movable" bolts, a hook arm secured oppositely disposed to the inner end of each bolt, a rocker arm intern'ie'diatethe inner ends of said bolts, the ends of which slidablv engage the said hook arms, whereby when the'rocker arm is moved the bolts are simultaneously moved in opposite directions, said rocker arm interlatchin with said hooks.

2-; In a door latch, the combination with two oppositely movable bolts, oppositely disposed hook arms secured to the inner end of each belt, a rocker arm intermediate the inner ends of said bolts and having slidable' engagement with said hook arms and adapted to said hooks, a plate connected to one of said'bolts and provided with a recess, and an operating handie'secured tosaid plate in said recess and adapted to move said bolts into and out of latching position, and means to latcl the handle against movement when the bolts have been moved to latched position. Y

In testimony whereof I affix my signature.

' CHARLES F; GESCHICKTER, 

